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[lhc/web/wiklou.git] / js2 / mwEmbed / libSequencer / mvPlayList.js
1 /*
2 * the mvPlayList object code
3 * only included if playlist object found
4 *
5 * part of mwEmbed media projects see:
6 * http://www.mediawiki.org/wiki/Media_Projects_Overview
7 *
8 * @author: Michael Dale mdale@wikimedia.org
9 * @license GPL2
10 */
11 var mv_default_playlist_attributes = {
12 //playlist attributes :
13 "id":null,
14 "title":null,
15 "width":400,
16 "height":300,
17 "desc":'',
18 "controls":true,
19 //playlist user controlled features
20 "linkback":null,
21 "src":null,
22 "embed_link":true,
23
24 //enable sequencer? (only display top frame no navigation or accompanying text
25 "sequencer":false
26 }
27 //the call back rate for animations and internal timers in ms: 33 is about 30 frames a second:
28 var MV_ANIMATION_CB_RATE = 33;
29
30 //globals:
31 //10 possible colors for clips: (can be in hexadecimal)
32 var mv_clip_colors = new Array('aqua', 'blue', 'fuchsia', 'green', 'lime', 'maroon', 'navy', 'olive', 'purple', 'red');
33
34 //the base url for requesting stream metadata
35 if(typeof wgServer=='undefined'){
36 var defaultMetaDataProvider = 'http://metavid.org/overlay/archive_browser/export_cmml?stream_name=';
37 }else{
38 var defaultMetaDataProvider = wgServer + wgScript + '?title=Special:MvExportStream&feed_format=roe&stream_name=';
39 }
40 /*
41 * The playlist Object implements ~most~ of embedVideo but we don't inherit (other than to use the control builder)
42 * because pretty much every function has to be changed for the playlist context
43 */
44 var mvPlayList = function(element) {
45 return this.init(element);
46 };
47 //set up the mvPlaylist object
48 mvPlayList.prototype = {
49 instanceOf:'mvPlayList',
50 pl_duration:null,
51 update_tl_hook:null,
52 clip_ready_count:0,
53 cur_clip:null,
54 start_clip:null,
55 start_clip_src:null,
56 disp_play_head:null,
57 userSlide:false,
58 loading:true,
59 loading_external_data:true, //if we are loading external data (set to loading by default)
60
61 activeClipList:null,
62 playlist_buffer_time: 20, // how many seconds of future clips we should buffer
63
64 interface_url:null, //the interface url
65 tracks:{},
66 default_track:null, // the default track to add clips to.
67 //the layout for the playlist object
68 pl_layout : {
69 seq_title:.1,
70 clip_desc:.63, //displays the clip description
71 clip_aspect:1.33, // 4/3 video aspect ratio
72 seq:.25, //display clip thumbnails
73 seq_thumb:.25, //size for thumbnails (same as seq by default)
74 seq_nav:0, //for a nav bar at the base (currently disabled)
75 //some pl_layout info:
76 title_bar_height:17,
77 control_height:29
78 },
79 //embed object type support system;
80 supports: {
81 'play_head':true,
82 'pause':true,
83 'fullscreen':false,
84 'time_display':true,
85 'volume_control':true,
86
87 'overlays':true,
88 'playlist_swap_loader':true //if the object supports playlist functions
89 },
90 init : function(element){
91 js_log('mvPlayList:init:');
92 this.tracks={};
93 this.default_track=null;
94
95 this.activeClipList = new activeClipList();
96 //add default track & default track pointer:
97 this.tracks[0]= new trackObj({'inx':0});
98 this.default_track = this.tracks[0];
99
100 //get all the attributes:
101 for(var attr in mv_default_playlist_attributes){
102 if( element.getAttribute(attr) ){
103 this[attr]=element.getAttribute(attr);
104 //js_log('attr:' + attr + ' val: ' + video_attributes[attr] +" "+'elm_val:' + element.getAttribute(attr) + "\n (set by elm)");
105 }else{
106 this[attr]=mv_default_playlist_attributes[attr];
107 //js_log('attr:' + attr + ' val: ' + video_attributes[attr] +" "+ 'elm_val:' + element.getAttribute(attr) + "\n (set by attr)");
108 }
109 }
110 //make sure height and width are int:
111 this.width =parseInt(this.width);
112 this.height=parseInt(this.height);
113
114 //if style is set override width and height
115 if(element.style.width)this.width = parseInt(element.style.width.replace('px',''));
116 if(element.style.height)this.height = parseInt(element.style.height.replace('px',''));
117
118 //if controls=false hide the title and the controls:
119 if(this.controls===false){
120 this.pl_layout.control_height=0;
121 this.pl_layout.title_bar_height=0;
122 }
123 },
124 //the element has now been swapped into the dom:
125 on_dom_swap:function(){
126 js_log('pl: dom swap');
127 //get and load the html:
128 this.getHTML();
129 },
130 //run inheritEmbedObj on every clip (we have changed the playback method)
131 inheritEmbedObj:function(){
132 $j.each(this.tracks, function(i,track){
133 track.inheritEmbedObj();
134 });
135 },
136 doOptionsHTML:function(){
137 //grab "options" use current clip:
138 this.cur_clip.embed.doOptionsHTML();
139 },
140 //pulls up the video editor inline
141 doEditor:function(){
142 //black out the page:
143 //$j('body').append('<div id="ui-widget-overlay"/> <div id="modalbox" class="ui-widget ui-widget-content ui-corner-all modal_editor">' );
144 $j('body').append('<div class="ui-widget-overlay" style="width: 100%; height: 100%px; z-index: 10;"></div>');
145 $j('body').append('<div id="sequencer_target" style="z-index:11;position:fixed;top:10px;left:10px;right:10px;bottom:10px;" ' +
146 'class="ui-widget ui-widget-content ui-corner-all"></div>');
147
148 //@@todo clone the playlist (for faster startup)
149 /*
150 * var this_plObj_Clone = $j('#'+this.id).get(0).cloneNode(true);
151 * this_plObj_Clone.sequencer=true;
152 * this_plObj_Clone.id= 'seq_plobj';
153 * debugger;
154 */
155 //load sequencer:
156 $j("#sequencer_target").sequencer({
157 "mv_pl_src" : this.src
158 });
159
160 },
161 showPlayerselect:function(){
162 this.cur_clip.embed.showPlayerselect();
163 },
164 closeDisplayedHTML:function(){
165 this.cur_clip.embed.closeDisplayedHTML();
166 },
167 showDownload:function(){
168 this.cur_clip.embed.showDownload();
169 },
170 showShare:function(){
171 var embed_code = '&lt;script type=&quot;text/javascript&quot; '+
172 'src=&quot;'+mv_embed_path+'mv_embed.js&quot;&gt;&lt;/script&gt '+"\n" +
173 '&lt;playlist id=&quot;'+this.id+'&quot; ';
174 if(this.src){
175 embed_code+='src=&quot;'+this.src+'&quot; /&gt;';
176 }else{
177 embed_code+='&gt;'+"\n";
178 embed_code+= this.data.htmlEntities();
179 embed_code+='&lt;playlist/&gt;';
180 }
181 this.cur_clip.embed.showShare( embed_code );
182 },
183 getPlaylist:function(){
184 js_log("f:getPlaylist: " + this.srcType );
185 //@@todo lazy load plLib
186 eval('var plObj = '+this.srcType+'Playlist;');
187 //import methods from the plObj to this
188 for(var method in plObj){
189 //js parent preservation for local overwritten methods
190 if(this[method])this['parent_' + method] = this[method];
191 this[method]=plObj[method];
192 js_log('inherit:'+ method);
193 }
194
195 if(typeof this.doParse != 'function'){
196 js_log('error: method doParse not found in plObj'+ this.srcType);
197 return false;
198 }
199
200 if(typeof this.doParse == 'function'){
201 if( this.doParse() ){
202 this.doWhenParseDone();
203 }else{
204 js_log("error: failed to parse playlist");
205 return false;
206 //error or parse needs to do ajax requests
207 }
208 }
209 },
210 doNativeWarningCheck:function(){
211 var clip = this.default_track.clips[0];
212 if(clip){
213 return clip.embed.doNativeWarningCheck();
214 }
215 },
216 doWhenParseDone:function(){
217 js_log('f:doWhenParseDone');
218 //do additional init for clips:
219 var _this = this;
220 var error=false;
221 _this.clip_ready_count=0;
222 for( var i in this.default_track.clips ){
223 var clip = this.default_track.clips[i];
224 if(clip.embed.load_error){
225 var error = clip.embed.load_error;
226 //break on any clip we can't playback:
227 break;
228 }
229 if( clip.embed.ready_to_play ){
230 _this.clip_ready_count++;
231 continue;
232 }
233 //js_log('clip sources count: '+ clip.embed.media_element.sources.length);
234 clip.embed.on_dom_swap();
235 if( clip.embed.loading_external_data==false &&
236 clip.embed.init_with_sources_loadedDone==false){
237 clip.embed.init_with_sources_loaded();
238 }
239 }
240
241 //@@todo for some plugins we have to conform types of clips
242 // ie vlc can play flash _followed_by_ ogg _followed_by_ whatever
243 // but
244 // native ff 3.1a2 can only play ogg
245 if( error){
246 this.load_error=error;
247 this.is_ready=false;
248 }else if( _this.clip_ready_count == _this.getClipCount() ){
249 js_log("done init all clips: " + _this.clip_ready_count + ' = ' + _this.getClipCount());
250 this.doWhenClipLoadDone();
251 }else{
252 js_log("only "+ _this.clip_ready_count +" clips done, scheduling callback:");
253 var doParseDoneCheck = function(){
254 _this.doWhenParseDone();
255 }
256 if( !mvJsLoader.load_error ) //re-issue request if no load error:
257 setTimeout(doParseDoneCheck, 100);
258 }
259 },
260 doWhenClipLoadDone:function(){
261 js_log('mvPlaylist:doWhenClipLoadDone');
262 this.ready_to_play = true;
263 this.loading = false;
264 this.getHTML();
265 },
266 getDuration:function( regen ){
267 //js_log("GET PL DURRATION for : "+ this.tracks[this.default_track_id].clips.length + 'clips');
268 if(!regen && this.pl_duration)
269 return this.pl_duration;
270
271 var durSum=0;
272 $j.each( this.default_track.clips, function( i, clip ){
273 if( clip.embed ){
274 clip.dur_offset = durSum;
275 //only calculate the solo Duration if a smil clip that could contain a transition:
276 if( clip.instanceOf == 'mvSMILClip' ){
277 //don't include transition time (for playlist_swap_loader compatible clips)
278 durSum += clip.getSoloDuration();
279 }else{
280 durSum += clip.getDuration();
281 }
282 }else{
283 js_log("ERROR: clip " +clip.id + " not ready");
284 }
285 });
286 this.pl_duration=durSum;
287 //js_log("return dur: " + this.pl_duration);
288 return this.pl_duration;
289 },
290 getTimeReq:function(){
291 //playlist does not really support time request atm ( in theory in the future we could embed playlists with temporal urls)
292 return '0:0:0/' + seconds2npt( this.getDuration() );
293 },
294 getDataSource:function(){
295 js_log("f:getDataSource "+ this.src);
296 //determine the type / first is it m3u or xml?
297 var pl_parent = this;
298 this.makeURLAbsolute();
299 if(this.src!=null){
300 do_request(this.src, function(data){
301 pl_parent.data=data;
302 pl_parent.getSourceType();
303 });
304 }
305 },
306 getSourceType:function(){
307 js_log('data type of: '+ this.src + ' = ' + typeof (this.data) + "\n"+ this.data);
308 this.srcType =null;
309 //if not external use different detection matrix
310 if(this.loading_external_data){
311 if( typeof this.data == 'object' ){
312 js_log('object');
313 //object assume xml (either xspf or rss)
314 plElm = this.data.getElementsByTagName('playlist')[0];
315 if( plElm ){
316 if(plElm.getAttribute('xmlns')=='http://xspf.org/ns/0/'){
317 this.srcType ='xspf';
318 }
319 }
320 //check itunes style rss "items"
321 rssElm = this.data.getElementsByTagName('rss')[0];
322 if(rssElm){
323 if(rssElm.getAttribute('xmlns:itunes')=='http://www.itunes.com/dtds/podcast-1.0.dtd'){
324 this.srcType='itunes';
325 }
326 }
327 //check for smil tag:
328 smilElm = this.data.getElementsByTagName('smil')[0];
329 if(smilElm){
330 //don't check dtd yet.. (have not defined the smil subset)
331 this.srcType='smil';
332 }
333 }else if(typeof this.data == 'string'){
334 js_log('String');
335 //look at the first line:
336 var first_line = this.data.substring(0, this.data.indexOf("\n"));
337 js_log('first line: '+ first_line);
338 //string
339 if(first_line.indexOf('#EXTM3U')!=-1){
340 this.srcType = 'm3u';
341 }else if(first_line.indexOf('<smil')!=-1){
342 //@@todo parse string
343 this.srcType = 'smil';
344 }
345 }
346 }
347 if(this.srcType){
348 js_log('is of type:'+ this.srcType);
349 this.getPlaylist();
350 }else{
351 //unknown playlist type
352 js_log('unknown playlist type?');
353 if(this.src){
354 this.innerHTML= 'error: unknown playlist type at url:<br> ' + this.src;
355 }else{
356 this.innerHTML='error: unset src or unknown inline playlist data<br>';
357 }
358 }
359 },
360 //simple function to make a path into an absolute url if its not already
361 makeURLAbsolute:function(){
362 if(this.src){
363 if(this.src.indexOf('://')==-1){
364 var purl = parseUri(document.URL);
365 if(this.src.charAt(0)=='/'){
366 this.src = purl.protocol +'://'+ purl.host + this.src;
367 }else{
368 this.src= purl.protocol +'://'+ purl.host + purl.directory + this.src;
369 }
370 }
371 }
372 },
373 //set up minimal media_element emulation:
374 media_element:{
375 selected_source:{
376 supports_url_time_encoding:true
377 }
378 },
379 //@@todo needs to update for multi-track clip counts
380 getClipCount:function(){
381 return this.default_track.clips.length;
382 },
383 //},
384 //takes in the playlist
385 // inherits all the properties
386 // swaps in the playlist object html/interface div
387 getHTML:function(){
388 js_log('mvPlaylist:getHTML: loading:' + this.loading);
389 if(this.loading){
390 $j('#'+this.id).html('loading playlist<blink>...</blink>');
391 if( this.loading_external_data ){
392 //load the data source chain of functions (to update the innerHTML)
393 this.getDataSource();
394 }else{
395 //detect datatype and parse directly:
396 this.getSourceType();
397 }
398 }else{
399 //check for empty playlist otherwise renderDisplay:
400 if(this.default_track.getClipCount()==0){
401 $j(this).html('empty playlist');
402 return ;
403 }else{
404 this.renderDisplay();
405 }
406 }
407 },
408 renderDisplay:function(){
409 js_log('mvPlaylist:renderDisplay:: track length: ' +this.default_track.getClipCount() );''
410
411 var _this=this;
412 //setup layout for title and dc_ clip container
413
414
415 //add the playlist controls:
416
417 //append container and videoPlayer;
418 $j(this).html('<div id="dc_'+this.id+'" style="width:'+this.width+'px;' +
419 'height:'+(this.height+this.pl_layout.title_bar_height + this.pl_layout.control_height)+'px;position:relative;">' +
420 '</div>');
421 if(this.controls==true){
422 //append title & controler:
423 $j('#dc_'+_this.id).append(
424 '<div style="font-size:13px;border:solid thin;width:'+this.width+'px;" id="ptitle_'+this.id+'"></div>' +
425 '<div class="videoPlayer" style="position:absolute;top:'+(_this.height+_this.pl_layout.title_bar_height+4)+'px">' +
426 '<div id="mv_embedded_controls_'+_this.id+'" class="ui-widget ui-corner-bottom ui-state-default controls" '+
427 'style="width:' + _this.width + 'px" >' +
428 _this.getControlsHTML() +
429 '</div>'+
430 '</div>'
431 );
432
433 //add the play button:
434 $j('#dc_'+_this.id).append(
435 this.cur_clip.embed.getPlayButton()
436 );
437 //once the controls are in the DOM add hooks:
438 ctrlBuilder.addControlHooks(this);
439 }else{
440 //just append the video:
441 $j('#dc_'+_this.id).append(
442 '<div class="videoPlayer" style="position:absolute;top:'+(_this.height+_this.pl_layout.title_bar_height+4)+'px"></div>'
443 );
444 }
445 this.setupClipDisplay();
446
447 //update the title and status bar
448 this.updateBaseStatus();
449 },
450 setupClipDisplay:function(){
451 js_log('mvPlaylist:setupClipDisplay:: clip len:'+ this.default_track.clips.length);
452 var _this = this;
453 $j.each(this.default_track.clips, function(i, clip){
454 var cout = '<div class="clip_container cc_" id="clipDesc_'+clip.id+'" '+
455 'style="display:none;position:absolute;text-align: center;width:'+_this.width + 'px;'+
456 'height:'+(_this.height )+'px;'+
457 'top:' + this.title_bar_height + 'px;left:0px;';
458 if(_this.controls){
459 cout+='border:solid thin black;';
460 }
461 cout+='"></div>';
462 $j('#dc_'+_this.id).append( cout );
463 //update the embed html:
464 clip.embed.height=_this.height;
465 clip.embed.width=_this.width;
466 clip.embed.play_button=false;
467
468 clip.embed.getHTML();//get the thubnails for everything
469
470 $j(clip.embed).css({
471 'position':"absolute",
472 'top':"0px",
473 'left':"0px"
474 });
475 if($j('#clipDesc_'+clip.id).length != 0){
476 js_log("should set: #clipDesc_"+clip.id + ' to: ' + $j(clip.embed).html() )
477 $j('#clipDesc_'+clip.id).append( clip.embed );
478 }else{
479 js_log('cound not find: clipDesc_'+clip.id);
480 }
481 });
482 if(this.cur_clip)
483 $j('#clipDesc_'+this.cur_clip.id).css( { display:'inline' } );
484 },
485 updateThumbPerc:function( perc ){
486 //get float seconds:
487 var float_sec = ( this.getDuration() * perc );
488 this.updateThumbTime( float_sec );
489 },
490 updateThumbTime:function( float_sec ){
491 //update display & cur_clip:
492 var pl_sum_time =0;
493 var clip_float_sec=0;
494 //js_log('seeking clip: ');
495 for(var i in this.default_track.clips){
496 var clip = this.default_track.clips[i];
497 if( (clip.getDuration() + pl_sum_time) >= float_sec ){
498 if(this.cur_clip.id != clip.id){
499 $j('#clipDesc_'+this.cur_clip.id).hide();
500 this.cur_clip = clip;
501 $j('#clipDesc_'+this.cur_clip.id).show();
502 }
503 break;
504 }
505 pl_sum_time+=clip.getDuration();
506 }
507
508 //issue thumbnail update request: (if plugin supports it will render out frame
509 // if not then we do a call to the server to get a new jpeg thumbnail
510 this.cur_clip.embed.updateThumbTime( float_sec - pl_sum_time );
511
512 this.cur_clip.embed.currentTime = (float_sec -pl_sum_time) + this.cur_clip.embed.start_offset ;
513 this.cur_clip.embed.seek_time_sec = (float_sec -pl_sum_time );
514
515 //render effects ontop: (handled by doSmilActions)
516 this.doSmilActions( single_line = true );
517 },
518 updateBaseStatus:function(){
519 var _this = this;
520 js_log('Playlist:updateBaseStatus');
521 $j('#ptitle_'+this.id).html(''+
522 '<b>' + this.title + '</b> '+
523 this.getClipCount()+' clips, <i>'+
524 seconds2npt( this.getDuration() ) + '</i>');
525
526 //only show the inline edit button if mediaWiki write API is enabled:
527
528 //should probably be based on if we have a provider api url
529 if( typeof wgEnableWriteAPI != 'undefined'){
530 $j( $j.btnHtml('edit', 'editBtn_'+this.id, 'pencil',
531 {'style':'position:absolute;right:0;;font-size:x-small;height:10px;margin-bottom:0;padding-bottom:7px;padding-top:0;'} )
532 ).click(function(){
533 _this.stop();
534 _this.doEditor();
535 return false;
536 }).appendTo('#ptitle_'+this.id);
537 $j('.editBtn_'+this.id).btnBind();
538 }
539 //render out the dividers on the timeline:
540 this.colorPlayHead();
541 //update status:
542 this.setStatus( '0:0:00/' + seconds2npt( this.getDuration() ) );
543 },
544 /*setStatus override (could call the jquery directly) */
545 setStatus:function(value){
546 $j('#mv_time_'+this.id).html( value );
547 },
548 setSliderValue:function(value){
549 //slider is on 1000 scale:
550 var val = parseInt( value *1000 );
551 $j('#mv_play_head_' + this.id).slider('value', val);
552 },
553 getPlayHeadPos: function(prec_done){
554 var _this = this;
555 if($j('#mv_seeker_'+this.id).length==0){
556 //js_log('no playhead so we can\'t get playhead pos' );
557 return 0;
558 }
559 var track_len = $j('#mv_seeker_'+this.id).css('width').replace(/px/, '');
560 //assume the duration is static and present at .duration during playback
561 var clip_perc = this.cur_clip.embed.duration / this.getDuration();
562 var perc_offset =time_offset = 0;
563 for(var i in this.default_track.clips){
564 var clip = this.default_track.clips[i];
565 if(this.cur_clip.id ==clip.id)break;
566 perc_offset+=(clip.embed.duration / _this.getDuration());
567 time_offset+=clip.embed.duration;
568 }
569 //run any update time line hooks:
570 if(this.update_tl_hook){
571 var cur_time_ms = time_offset + Math.round(this.cur_clip.embed.duration*prec_done);
572 if(typeof update_tl_hook =='function'){
573 this.update_tl_hook(cur_time_ms);
574 }else{
575 //string type passed use eval:
576 eval(this.update_tl_hook+'('+cur_time_ms+');');
577 }
578 }
579
580 //handle offset hack @@todo fix so this is not needed:
581 if(perc_offset > .66)
582 perc_offset+=( 8/track_len );
583 //js_log('perc:'+ perc_offset +' c:'+ clip_perc + '*' + prec_done + ' v:'+(clip_perc*prec_done));
584 return perc_offset + ( clip_perc * prec_done );
585 },
586 //attempts to load the embed object with the playlist
587 loadEmbedPlaylist: function(){
588 //js_log('load playlist');
589 },
590 /** mannages the loading of future clips
591 * called regurally while we are playing clips
592 *
593 * load works like so:
594 * if the current clip is full loaded
595 * load clips untill buffredEndTime < playlist_buffer_time load next
596 *
597 * this won't work so well with time range loading for smil (need to work on that)
598 */
599 loadFutureClips:function(){
600 /*if( this.cur_clip.embed.bufferedPercent == 1){
601 //set the buffer to the currentTime - duration
602 var curBuffredTime = this.cur_clip.getDuration() - this.cur_clip.embed.currentTime;
603
604 if(curBuffredTime < 0)
605 curBuffredTime = 0;
606
607 js_log( "curBuffredTime:: " + curBuffredTime );
608 if( curBuffredTime < this.playlist_buffer_time ){
609 js_log(" we only have " + curBuffredTime + ' buffed but we need: ' + this.playlist_buffer_time);
610
611 for(var inx = this.cur_clip.order + 1; inx < this.default_track.clips.length; inx++ ){
612 var cClip = this.default_track.getClip( inx );
613
614 //check if the clip is already loaded (add its duration)
615 if( cClip.embed.bufferedPercent == 1){
616 curBuffredTime += cClip.embed.getDuration();
617 }
618 //check if we still have to load a resource:
619 if( curBuffredTime < this.playlist_buffer_time ){
620 //issue the load request
621 if( cClip.embed.networkState==0 ){
622 cClip.embed.load();
623 }
624 break; //check back next time
625 }
626 }
627 }
628 }*/
629 },
630 //called to play the next clip if done call onClipDone
631 playNext: function(){
632 //advance the playhead to the next clip
633 var next_clip = this.getNextClip();
634
635 if( !next_clip ){
636 js_log('play next with no next clip... must be done:');
637 this.onClipDone();
638 return ;
639 }
640 //@@todo where the plugin supports pre_loading future clips and manage that in javascript
641 //stop current clip
642 this.cur_clip.embed.stop();
643
644 this.updateCurrentClip(next_clip);
645
646 this.cur_clip.embed.play();
647 },
648 onClipDone:function(){
649 js_log("pl onClipDone");
650 this.cur_clip.embed.stop();
651 },
652 updateCurrentClip:function( new_clip ){
653 js_log('f:updateCurrentClip:'+new_clip.id);
654 //make sure we are not switching to the current
655 if( this.cur_clip.id == new_clip.id ){
656 js_log('trying to updateCurrentClip to same clip');
657 return false;
658 }
659
660 //keep the active play clip in sync (stop the other clip)
661 if( this.cur_clip ){
662 if( !this.cur_clip.embed.isStoped() )
663 this.cur_clip.embed.stop();
664 this.activeClipList.remove(this.cur_clip )
665 }
666
667 this.activeClipList.add( new_clip );
668
669 //do swap:
670 $j('#clipDesc_'+this.cur_clip.id).hide();
671 this.cur_clip=new_clip;
672 $j('#clipDesc_'+this.cur_clip.id).show();
673 //update the playhead:
674 this.setSliderValue( this.cur_clip.dur_offset / this.getDuration() );
675 },
676 playPrev: function(){
677 //advance the playhead to the previous clip
678 var prev_clip = this.getPrevClip();
679 if(!prev_clip){
680 js_log("tried to play PrevClip with no prev Clip.. setting prev_clip to start clip");
681 prev_clip = this.start_clip;
682 }
683 //@@todo we could do something fancy like use playlist for sets of clips where supported.
684 // or in cases where the player nativly supports the playlist format we can just pass it in (ie m3u or xspf)
685 if(this.cur_clip.embed.supports['playlist_swap_loader']){
686 //where the plugin supports pre_loading future clips and manage that in javascript
687 //pause current clip
688 this.cur_clip.embed.pause();
689 //do swap:
690 this.updateCurrentClip(prev_clip);
691 this.cur_clip.embed.play();
692 }else{
693 js_log('do prev hard embed swap');
694 this.switchPlayingClip(prev_clip);
695 }
696 },
697 switchPlayingClip:function(new_clip){
698 //swap out the existing embed code for next clip embed code
699 $j('#mv_ebct_'+this.id).empty();
700 new_clip.embed.width=this.width;
701 new_clip.embed.height=this.height;
702 //js_log('set embed to: '+ new_clip.embed.getEmbedObj());
703 $j('#mv_ebct_'+this.id).html( new_clip.embed.getEmbedObj() );
704 this.cur_clip=new_clip;
705 //run js code:
706 this.cur_clip.embed.pe_postEmbedJS();
707 },
708 //playlist play
709 play: function(){
710 var _this=this;
711 //js_log('pl play');
712 //hide the playlist play button:
713 $j('#big_play_link_'+this.id).hide();
714
715 //un-pause if paused:
716 if(this.paused)
717 this.paused=false;
718
719 //update the control:
720 this.start_clip = this.cur_clip;
721 this.start_clip_src= this.cur_clip.src;
722
723 if(this.cur_clip.embed.supports['playlist_swap_loader'] ){
724 //set the cur_clip to active
725 this.activeClipList.add(this.cur_clip);
726
727 //navtive support:
728 // * pre-loads clips
729 // * mv_playlist smil extension, manages transitions animations overlays etc.
730 //js_log('clip obj supports playlist swap_loader (ie playlist controlled playback)');
731 //@@todo pre-load each clip:
732 //play all active clips (playlist_swap_loader can have more than one clip active)
733 $j.each(this.activeClipList.getClipList(), function(inx, clip){
734 clip.embed.play();
735 });
736 }else if(this.cur_clip.embed.supports['playlist_driver']){
737 //js_log('playlist_driver');
738 //embedObject is feed the playlist info directly and manages next/prev
739 this.cur_clip.embed.playMovieAt( this.cur_clip.order );
740 }else{
741 //not much playlist support just play the first clip:
742 //js_log('basic play');
743 //play cur_clip
744 this.cur_clip.embed.play();
745 }
746 //start up the playlist monitor
747 this.monitor();
748 },
749 /*
750 * the load function loads all the clips in order
751 */
752 load:function(){
753 //do nothing right now)
754 },
755 toggleMute:function(){
756 this.cur_clip.embed.toggleMute();
757 },
758 pause:function(){
759 //js_log('f:pause: playlist');
760 var ct = new Date();
761 this.pauseTime = this.currentTime;
762 this.paused=true;
763 //js_log('pause time: '+ this.pauseTime + ' call embed pause:');
764
765 //pause all the active clips:
766 $j.each(this.activeClipList.getClipList(), function(inx, clip){
767 clip.embed.pause();
768 });
769 },
770 //@@todo mute across all child clips:
771 toggleMute:function(){
772 var this_id = (this.pc!=null)?this.pc.pp.id:this.id;
773 if(this.muted){
774 this.muted=false;
775 $j('#volume_control_'+this_id + ' span').removeClass('ui-icon-volume-off').addClass('ui-icon-volume-on');
776 $j('#volume_bar_'+this_id).slider('value', 100);
777 this.updateVolumen(1);
778 }else{
779 this.muted=true;
780 $j('#volume_control_'+this_id + ' span').removeClass('ui-icon-volume-on').addClass('ui-icon-volume-off');
781 $j('#volume_bar_'+this_id).slider('value', 0);
782 this.updateVolumen(0);
783 }
784 js_log('f:toggleMute::' + this.muted);
785 },
786 updateVolumen:function(perc){
787 js_log('update volume not supported with current playback type');
788 },
789 fullscreen:function(){
790 this.cur_clip.embed.fullscreen();
791 },
792 //playlist stops playback for the current clip (and resets state for start clips)
793 stop:function(){
794 var _this = this;
795 /*js_log("pl stop:"+ this.start_clip.id + ' c:'+this.cur_clip.id);
796 //if start clip
797 if(this.start_clip.id!=this.cur_clip.id){
798 //restore clipDesc visibility & hide desc for start clip:
799 $j('#clipDesc_'+this.start_clip.id).html('');
800 this.start_clip.getDetail();
801 $j('#clipDesc_'+this.start_clip.id).css({display:'none'});
802 this.start_clip.setBaseEmbedDim(this.start_clip.embed);
803 //equivalent of base stop
804 $j('#'+this.start_clip.embed.id).html(this.start_clip.embed.getThumbnailHTML());
805 this.start_clip.embed.thumbnail_disp=true;
806 }
807 //empty the play-back container
808 $j('#mv_ebct_'+this.id).empty();*/
809
810 //stop all the clips: monitor:
811 window.clearInterval( this.smil_monitorTimerId );
812 /*for (var i=0;i<this.clips.length;i++){
813 var clip = this.clips[i];
814 if(clip){
815 clip.embed.stop();
816 $j('#clipDesc_'+clip.id).hide();
817 }
818 }*/
819 //stop, hide and remove all active clips:
820 $j.each(this.activeClipList.getClipList(), function(inx, clip){
821 if(clip){
822 clip.embed.stop();
823 $j('#clipDesc_'+clip.id).hide();
824 _this.activeClipList.remove(clip);
825 }
826 });
827 //set the current clip to the first clip:
828 if(this.start_clip){
829 this.cur_clip = this.start_clip;
830 //display the first clip thumb:
831 this.cur_clip.embed.stop();
832 //hide other clips:
833 $j('#'+this.id+' .clip_container').hide();
834 //show the first/current clip:
835 $j('#clipDesc_'+this.cur_clip.id).show();
836 }
837 //reset the currentTime:
838 this.currentTime = 0;
839 //rest the sldier
840 this.setSliderValue( 0 );
841 //FIXME still some issues with "stoping" and reseting the playlist
842 },
843 doSeek:function(v){
844 js_log('pl:doSeek:' + v + ' sts:' + this.seek_time_sec );
845 var _this = this;
846 var prevClip=null;
847
848 //jump to the clip in the current percent.
849 var perc_offset=0;
850 var next_perc_offset=0;
851 for(var i in _this.default_track.clips){
852 var clip = _this.default_track.clips[i];
853 next_perc_offset+=( clip.getDuration() / _this.getDuration()) ;
854 //js_log('on ' + clip.getDuration() +' next_perc_offset:'+ next_perc_offset);
855 if( next_perc_offset > v ){
856 //pass along the relative percentage to embed object:
857 //js_log('seek:'+ v +' - '+perc_offset + ') / (' + next_perc_offset +' - '+ perc_offset);
858 var relative_perc = (v -perc_offset) / (next_perc_offset - perc_offset);
859 //update the current clip:
860 _this.updateCurrentClip( clip );
861
862 //update the clip relative seek_time_sec
863 _this.cur_clip.embed.doSeek( relative_perc );
864 this.play();
865 return '';
866 }
867 perc_offset = next_perc_offset;
868 }
869 },
870 setCurrentTime: function(pos, callback){
871 js_log('pl:setCurrentTime:' + pos + ' sts:' + this.seek_time_sec );
872 var _this = this;
873 var prevClip=null;
874
875 //jump to the clip at pos
876 var currentOffset = 0;
877 var nextTime = 0;
878 for (var i in _this.default_track.clips) {
879 var clip = _this.default_track.clips[i];
880 nextTime = clip.getDuration();
881 if (currentOffset + nextTime > pos) {
882 //update the clip relative seek_time_sec
883 clipTime = pos - currentOffset;
884 if (_this.cur_clip.id != clip.id) {
885 _this.updateCurrentClip( clip );
886 }
887 _this.cur_clip.embed.setCurrentTime(clipTime, function(){
888 if(callback)
889 callback();
890 });
891 _this.currentTime = pos;
892 _this.doSmilActions();
893 }
894 currentOffset += nextTime;
895 }
896 },
897 //gets playlist controls large control height for sporting
898 //next prev button and more status display
899 getControlsHTML:function(){
900 //get controls from current clip (add some playlist specific controls:
901 return ctrlBuilder.getControls( this );
902 },
903 //ads colors/dividers between tracks
904 colorPlayHead: function(){
905 var _this = this;
906
907 if( !_this.mv_seeker_width)
908 _this.mv_seeker_width = $j('#mv_play_head_'+_this.id).width();
909
910 if( !_this.track_len )
911 _this.track_len = $j('#mv_play_head_'+_this.id).width();
912
913 //total duration:
914 var pl_duration = _this.getDuration();
915
916 var cur_pixle=0;
917 //set up _this
918
919 //js_log("do play head total dur: "+pl_duration );
920 $j.each(this.default_track.clips, function(i, clip){
921 //(use getSoloDuration to not include transitions and such)
922 var perc = ( clip.getSoloDuration() / pl_duration );
923 var pwidth = Math.round( perc * _this.track_len);
924 //js_log('pstatus:c:'+ clip.getDuration() + ' of '+ pl_duration+' %:' + perc + ' width: '+ pwidth + ' of total: ' + _this.track_len);
925 //var pwidth = Math.round( perc * _this.track_len - (_this.mv_seeker_width*perc) );
926
927 //add the buffer child indicator:
928 var barHtml= '<div id="cl_status_' + clip.embed.id + '" class="cl_status" style="' +
929 'left:'+cur_pixle +'px;'+
930 'width:'+pwidth + 'px;';
931 //set left or right border based on track pos
932 barHtml+=( i == _this.default_track.getClipCount()-1 )?
933 'border-left:solid thin black;':
934 'border-right:solid thin black;';
935 barHtml+= 'filter:alpha(opacity=40);'+
936 '-moz-opacity:.40;">';
937
938 barHtml+= ctrlBuilder.getMvBufferHtml();
939
940 barHtml+='</div>';
941
942 //background:#DDD +clip.getColor();
943
944 $j('#mv_play_head_'+_this.id).append(barHtml);
945
946 //js_log('offset:' + cur_pixle +' width:'+pwidth+' add clip'+ clip.id + ' is '+clip.embed.getDuration() +' = ' + perc +' of ' + _this.track_len);
947 cur_pixle+=pwidth;
948 });
949 },
950 //@@todo currently not really in use
951 setUpHover:function(){
952 js_log('Setup Hover');
953 //set up hover for prev,next
954 var th = 50;
955 var tw = th*this.pl_layout.clip_aspect;
956 var _this = this;
957 $j('#mv_prev_link_'+_this.id+',#mv_next_link_'+_this.id).hover(function() {
958 var clip = (this.id=='mv_prev_link_'+_this.id) ? _this.getPrevClip() : _this.getNextClip();
959 if(!clip)
960 return js_log('missing clip for Hover');
961 //get the position of #mv_perv|next_link:
962 var loc = getAbsolutePos(this.id);
963 //js_log('Hover: x:'+loc.x + ' y:' + loc.y + ' :'+clip.img);
964 $j("body").append('<div id="mv_Athub" style="position:absolute;' +
965 'top:'+loc.y+'px;left:'+loc.x+'px;width:'+tw+'px;height:'+th+'px;">'+
966 '<img style="border:solid 2px '+clip.getColor()+';position:absolute;top:0px;left:0px;" width="'+tw+'" height="'+th+'" src="'+clip.img+'"/>'+
967 '</div>');
968 }, function() {
969 $j('#mv_Athub').remove();
970 });
971 },
972 //@@todo we need to move a lot of this track logic like "cur_clip" to the track Obj
973 // and have the playlist just drive the tracks.
974 getNextClip:function( track ){
975 if(!track)
976 track = this.default_track;
977 var tc = parseInt(this.cur_clip.order) + 1;
978 var cat = track;
979 if( tc > track.getClipCount() -1 )
980 return false; // out of range
981
982 return track.getClip( tc );
983 },
984 getPrevClip:function( track ) {
985 if(!track)
986 track = this.default_track;
987 var tc = parseInt(this.cur_clip.order) - 1;
988 if( tc < 0 )
989 return false;
990 return track.getClip( tc );
991 },
992 /*
993 * generic add Clip to ~default~ track
994 */
995 addCliptoTrack: function(clipObj, pos){
996 if( typeof clipObj['track_id'] =='undefined'){
997 var track = this.default_track;
998 }else{
999 var track = this.tracks[ clipObj.track_id ]
1000 }
1001 js_log('add clip:' + clipObj.id +' to track: at:' + pos);
1002 //set the first clip to current (maybe deprecated )
1003 if(clipObj.order==0){
1004 if(!this.cur_clip)this.cur_clip=clipObj;
1005 }
1006 track.addClip(clipObj, pos);
1007 },
1008 swapClipDesc: function(req_clipID, callback){
1009 //hide all but the requested
1010 var _this=this;
1011 js_log('r:'+req_clipID+' cur:'+_this.id);
1012 if(req_clipID==_this.cur_clip.id){
1013 js_log('no swap to same clip');
1014 }else{
1015 //fade out clips
1016 req_clip=null;
1017 $j.each(this.default_track.clips, function(i, clip){
1018 if(clip.id!=req_clipID){
1019 //fade out if display!=none already
1020 if($j('#clipDesc_'+clip.id).css('display')!='none'){
1021 $j('#clipDesc_'+clip.id).fadeOut("slow");
1022 }
1023 }else{
1024 req_clip =clip;
1025 }
1026 });
1027 //fade in requested clip *and set req_clip to current
1028 $j('#clipDesc_'+req_clipID).fadeIn("slow", function(){
1029 _this.cur_clip = req_clip;
1030 if(callback)
1031 callback();
1032 });
1033 }
1034 },
1035 //this is pretty outdated:
1036 getPLControls: function(){
1037 js_log('getPL cont');
1038 return '<a id="mv_prev_link_'+this.id+'" title="Previus Clip" onclick="document.getElementById(\''+this.id+'\').playPrev();return false;" href="#">'+
1039 getTransparentPng({id:'mv_prev_btn_'+this.id,style:'float:left',width:'27', height:'27', border:"0",
1040 src:mv_skin_img_path + 'vid_prev_sm.png' }) +
1041 '</a>'+
1042 '<a id="mv_next_link_'+this.id+'" title="Next Clip" onclick="document.getElementById(\''+this.id+'\').playNext();return false;" href="#">'+
1043 getTransparentPng({id:'mv_next_btn_'+this.id,style:'float:left',width:'27', height:'27', border:"0",
1044 src:mv_skin_img_path + 'vid_next_sm.png' }) +
1045 '</a>';
1046 },
1047 run_transition: function( clip_inx, trans_type){
1048 if(typeof this.default_track.clips[ clip_inx ][ trans_type ] == 'undefined')
1049 clearInterval( this.default_track.clips[ clip_inx ].timerId );
1050 else
1051 this.default_track.clips[ clip_inx ][ trans_type ].run_transition();
1052 },
1053 playerPixelWidth : function()
1054 {
1055 var player = $j('#dc_'+this.id).get(0);
1056 if(typeof player!='undefined' && player['offsetWidth'])
1057 return player.offsetWidth;
1058 else
1059 return parseInt(this.width);
1060 },
1061 playerPixelHeight : function()
1062 {
1063 var player = $j('#dc_'+this.id).get(0);
1064 if(typeof player!='undefined' && player['offsetHeight'])
1065 return player.offsetHeight;
1066 else
1067 return parseInt(this.height);
1068 }
1069 }
1070
1071 /* Object Stubs:
1072 *
1073 * @videoTrack ... stores clips and layer info
1074 *
1075 * @clip... each clip segment is a clip object.
1076 * */
1077 var mvClip = function(o) {
1078 if(o)
1079 this.init(o);
1080 return this;
1081 };
1082 //set up the mvPlaylist object
1083 mvClip.prototype = {
1084 id:null, //clip id
1085 pp:null, // parent playlist
1086 order:null, //the order/array key for the current clip
1087 src:null,
1088 info:null,
1089 title:null,
1090 mvclip:null,
1091 type:null,
1092 img:null,
1093 duration:null,
1094 loading:false,
1095 isAnimating:false,
1096 init:function(o){
1097 //init object including pointer to parent
1098 for(var i in o){
1099 this[i]=o[i];
1100 };
1101 js_log('id is: '+ this.id);
1102 },
1103 //setup the embed object:
1104 setUpEmbedObj:function(){
1105 js_log('mvClip:setUpEmbedObj()');
1106 //init:
1107
1108
1109 this.embed=null;
1110 //js_log('setup embed for clip '+ this.id + ':id is a function?');
1111 //set up the pl_mv_embed object:
1112 var init_pl_embed={id:'e_'+this.id,
1113 pc:this, //parent clip
1114 src:this.src
1115 };
1116
1117 this.setBaseEmbedDim( init_pl_embed );
1118
1119
1120 //if in sequence mode hide controls / embed links
1121 // init_pl_embed.play_button=false;
1122 init_pl_embed.controls=false;
1123 //if(this.pp.sequencer=='true'){
1124 init_pl_embed.embed_link=null;
1125 init_pl_embed.linkback=null;
1126
1127 if(this.poster)init_pl_embed['thumbnail']=this.poster;
1128
1129 if( this.type )init_pl_embed['type'] = this.type;
1130
1131 this.embed = new PlMvEmbed( init_pl_embed );
1132
1133 //js_log('media Duration:' + this.embed.getDuration() );
1134 //js_log('media element:'+ this.embed.media_element.length);
1135 //js_log('type of embed:' + typeof(this.embed) + ' seq:' + this.pp.sequencer+' pb:'+ this.embed.play_button);
1136 },
1137 doAdjust:function(side, delta){
1138 js_log("f:doAdjust: " + side + ' , ' + delta);
1139 if(this.embed){
1140 if(side=='start'){
1141 var start_offset =parseInt(this.embed.start_offset)+parseInt(delta*-1);
1142 this.embed.updateVideoTime( seconds2npt(start_offset), seconds2npt ( this.embed.start_offset + this.embed.getDuration() ) );
1143 }else if(side=='end'){
1144 var end_offset = parseInt(this.embed.start_offset) + parseInt( this.embed.getDuration() ) + parseInt(delta);
1145 this.embed.updateVideoTime( seconds2npt(this.embed.start_offset), seconds2npt(end_offset) );
1146 }
1147 //update everything:
1148 this.pp.refresh();
1149 /*var base_src = this.src.substr(0,this.src.indexOf('?'));
1150 js_log("delta:"+ delta);
1151 if(side=='start'){
1152 //since we adjust start invert the delta:
1153 var start_offset =parseInt(this.embed.start_offset/1000)+parseInt(delta*-1);
1154 this.src = base_src +'?t='+ seconds2npt(start_offset) +'/'+ this.embed.end_ntp;
1155 }else if(side=='end'){
1156 //put back into seconds for adjustment:
1157 var end_offset = parseInt(this.embed.start_offset/1000) + parseInt(this.embed.duration/1000) + parseInt(delta);
1158 this.src = base_src +'?t='+ this.embed.start_ntp +'/'+ seconds2npt(end_offset);
1159 }
1160 this.embed.updateVideoTime( this.src );
1161 //update values
1162 this.duration = this.embed.getDuration();
1163 this.pp.pl_duration=null;
1164 //update playlist stuff:
1165 this.pp.updateTitle();*/
1166 }
1167 },
1168 getDuration:function(){
1169 if(!this.embed)this.setUpEmbedObj();
1170 return this.embed.getDuration();
1171 },
1172 setBaseEmbedDim:function(o){
1173 if(!o)o=this;
1174 //o.height=Math.round(pl_layout.clip_desc*this.pp.height)-2;//give it some padding:
1175 //o.width=Math.round(o.height*pl_layout.clip_aspect)-2;
1176 o.height= this.pp.height;
1177 o.width = this.pp.width;
1178 },
1179 //output the detail view:
1180 //@@todo
1181 /*getDetail:function(){
1182 //js_log('get detail:' + this.pp.title);
1183 var th=Math.round( this.pl_layout.clip_desc * this.pp.height );
1184 var tw=Math.round( th * this.pl_layout.clip_aspect );
1185
1186 var twDesc = (this.pp.width-tw)-2;
1187
1188 if(this.title==null)
1189 this.title='clip ' + this.order + ' ' +this.pp.title;
1190 if(this.desc==null)
1191 this.desc=this.pp.desc;
1192 //update the embed html:
1193 this.embed.getHTML();
1194
1195 $j(this.embed).css({ 'position':"absolute",'top':"0px", 'left':"0px"});
1196
1197 //js_log('append child to:#clipDesc_'+this.id);
1198 if($j('#clipDesc_'+this.id).get(0)){
1199 $j('#clipDesc_'+this.id).get(0).appendChild(this.embed);
1200
1201 $j('#clipDesc_'+this.id).append(''+
1202 '<div id="pl_desc_txt_'+this.id+'" class="pl_desc" style="position:absolute;left:'+(tw+2)+'px;width:'+twDesc+'px;height:'+th+'px;overflow:auto;">'+
1203 '<b>'+this.title+'</b><br>'+
1204 this.desc + '<br>' +
1205 '<b>clip length:</b> '+ seconds2npt( this.embed.getDuration() );
1206 '</div>');
1207 }
1208 },*/
1209 getTitle:function(){
1210 if(typeof this.title == 'string')
1211 return this.title
1212
1213 return 'untitled clip ' + this.order;
1214 },
1215 getClipImg:function(start_offset, size){
1216 js_log('f:getClipImg ' + start_offset + ' s:'+size);
1217 if( !this.img){
1218 return mv_default_thumb_url;
1219 }else{
1220 if(!size && !start_offset){
1221 return this.img;
1222 }else{
1223 //if a metavid image (has request parameters) use size and time args
1224 if(this.img.indexOf('?')!=-1){
1225 js_log('get with offset: '+ start_offset);
1226 var time = seconds2npt( start_offset+ (this.embed.start_offset/1000) );
1227 js_log("time is: " + time);
1228 this.img = this.img.replace(/t\=[^&]*/gi, "t="+time);
1229 if(this.img.indexOf('&size=')!=-1){
1230 this.img = this.img.replace(/size=[^&]*/gi, "size="+size);
1231 }else{
1232 this.img+='&size='+size;
1233 }
1234 }
1235 return this.img;
1236 }
1237 }
1238 },
1239 getColor: function(){
1240 //js_log('get color:'+ num +' : '+ num.toString().substr(num.length-1, 1) + ' : '+colors[ num.toString().substr(num.length-1, 1)] );
1241 var num = this.id.substr( this.id.length-1, 1);
1242 if(!isNaN(num)){
1243 num=num.charCodeAt(0);
1244 }
1245 if(num >= 10)num=num % 10;
1246 return mv_clip_colors[num];
1247 }
1248 }
1249 /* mv_embed extensions for playlists */
1250 var PlMvEmbed=function(vid_init){
1251 //js_log('PlMvEmbed: '+ vid_init.id);
1252 //create the div container
1253 var ve = document.createElement('div');
1254 //extend ve with all this
1255 this.init(vid_init);
1256 for(method in this){
1257 if(method!='readyState'){
1258 ve[method]= this[method];
1259 }
1260 }
1261 js_log('ve src len:'+ ve.media_element.sources.length);
1262 return ve;
1263 }
1264 //all the overwritten and new methods for playlist extension of baseEmbed
1265 PlMvEmbed.prototype = {
1266 init:function(vid_init){
1267 //send embed_video a created video element:
1268 ve = document.createElement('div');
1269 for(var i in vid_init){
1270 //set the parent clip pointer:
1271 if(i=='pc'){
1272 this['pc']=vid_init['pc'];
1273 }else{
1274 ve.setAttribute(i,vid_init[i]);
1275 }
1276 }
1277 var videoInterface = new embedVideo(ve);
1278 //inherit the videoInterface
1279 for( method in videoInterface ){
1280 if(method!='style'){
1281 if( this[ method ] ){
1282 //parent embed method preservation:
1283 this['pe_'+method]=videoInterface[method];
1284 }else{
1285 this[method]=videoInterface[method];
1286 }
1287 }
1288 //string -> boolean:
1289 if(this[method]=="false")this[method]=false;
1290 if(this[method]=="true")this[method]=true;
1291 }
1292 },
1293 onClipDone:function(){
1294 js_log('pl onClipDone (should go to next)');
1295 //go to next in playlist:
1296 this.pc.pp.playNext();
1297 },
1298 stop:function(){
1299 js_log('pl:do stop');
1300 //set up convenience pointer to parent playlist
1301 var _this = this.pc.pp;
1302
1303 var th=Math.round( _this.pl_layout.clip_desc * _this.height );
1304 var tw=Math.round( th * _this.pl_layout.clip_aspect );
1305
1306 //run the parent stop:
1307 this.pe_stop();
1308 var pl_height = (_this.sequencer=='true')?_this.height+27:_this.height;
1309
1310 this.getHTML();
1311 },
1312 play:function(){
1313 //js_log('pl eb play');
1314 var _this = this.pc.pp;
1315 //check if we are already playing
1316 if( !this.thumbnail_disp ){
1317 this.pe_play();
1318 return '';
1319 }
1320 mv_lock_vid_updates=true;
1321 this.pe_play();
1322 },
1323 //do post interface operations
1324 postEmbedJS:function(){
1325 //add playlist clips (if plugin supports it)
1326 if(this.pc.pp.cur_clip.embed.playlistSupport())
1327 this.pc.pp.loadEmbedPlaylist();
1328 //color playlist points (if play_head present)
1329 if(this.pc.pp.disp_play_head)
1330 this.pc.pp.colorPlayHead();
1331 //setup hover images (for playhead and next/prev buttons)
1332 this.pc.pp.setUpHover();
1333 //call the parent postEmbedJS
1334 this.pe_postEmbedJS();
1335 mv_lock_vid_updates=false;
1336 },
1337 getPlayButton:function(){
1338 return this.pe_getPlayButton(this.pc.pp.id);
1339 },
1340 setStatus:function(value){
1341 //status updates handled by playlist obj
1342 },
1343 setSliderValue:function(value){
1344 js_log('PlMvEmbed:setSliderValue:' + value);
1345 //setSlider value handled by playlist obj
1346 }
1347 }
1348
1349 /*
1350 * m3u parse
1351 */
1352 var m3uPlaylist = {
1353 doParse:function(){
1354 //for each line not # add as clip
1355 var inx =0;
1356 var this_pl = this;
1357 //js_log('data:'+ this.data.toString());
1358 $j.each(this.data.split("\n"), function(i,n){
1359 //js_log('on line '+i+' val:'+n+' len:'+n.length);
1360 if( n.charAt(0) != '#' ){
1361 if( n.length > 3 ){
1362 //@@todo make sure its a valid url
1363 //js_log('add url: '+i + ' '+ n);
1364 var cur_clip = new mvClip({type:'srcClip',id:'p_'+this_pl.id+'_c_'+inx,pp:this_pl,src:n,order:inx});
1365 //setup the embed object
1366 cur_clip.setUpEmbedObj();
1367 js_log('m3uPlaylist len:'+ thisClip.embed.media_element.sources.length);
1368 this_pl.addCliptoTrack(cur_clip);
1369 inx++;
1370 }
1371 }
1372 });
1373 return true;
1374 }
1375 }
1376
1377 var itunesPlaylist = {
1378 doParse:function(){
1379 var properties = { title:'title', linkback:'link',
1380 author:'itunes:author',desc:'description',
1381 date:'pubDate' };
1382 var tmpElm = null;
1383 for(i in properties){
1384 tmpElm = this.data.getElementsByTagName(properties[i])[0];
1385 if(tmpElm){
1386 this[i] = tmpElm.childNodes[0].nodeValue;
1387 //js_log('set '+i+' to '+this[i]);
1388 }
1389 }
1390 //image src is nested in itunes rss:
1391 tmpElm = this.data.getElementsByTagName('image')[0];
1392 if(tmpElm){
1393 imgElm = tmpElm.getElementsByTagName('url')[0];
1394 if(imgElm){
1395 this.img = imgElm.childNodes[0].nodeValue;
1396 }
1397 }
1398 //get the clips:
1399 var clips = this.data.getElementsByTagName("item");
1400 properties.src = 'guid';
1401 for (var i=0;i<clips.length;i++){
1402 var cur_clip = new mvClip({type:'srcClip',id:'p_'+this.id+'_c_'+i,pp:this,order:i});
1403 for(var j in properties){
1404 tmpElm = clips[i].getElementsByTagName( properties[j] )[0];
1405 if(tmpElm!=null){
1406 cur_clip[j] = tmpElm.childNodes[0].nodeValue;
1407 //js_log('set clip property: ' + j+' to '+cur_clip[j]);
1408 }
1409 }
1410 //image is nested
1411 tmpElm = clips[i].getElementsByTagName('image')[0];
1412 if(tmpElm){
1413 imgElm = tmpElm.getElementsByTagName('url')[0];
1414 if(imgElm){
1415 cur_clip.img = imgElm.childNodes[0].nodeValue;
1416 }
1417 }
1418 //set up the embed object now that all the values have been set
1419 cur_clip.setUpEmbedObj();
1420
1421 //add the current clip to the clip list
1422 this.addCliptoTrack(cur_clip);
1423 }
1424 return true;
1425 }
1426 }
1427
1428 /*
1429 * parse xsfp:
1430 * http://www.xspf.org/xspf-v1.html
1431 */
1432 var xspfPlaylist ={
1433 doParse:function(){
1434 //js_log('do xsfp parse: '+ this.data.innerHTML);
1435 var properties = { title:'title', linkback:'info',
1436 author:'creator',desc:'annotation',
1437 poster:'image', date:'date' };
1438 var tmpElm = null;
1439 //get the first instance of any of the meta tags (ok that may be the meta on the first clip)
1440 //js_log('do loop on properties:' + properties);
1441 for(i in properties){
1442 js_log('on property: '+i);
1443 tmpElm = this.data.getElementsByTagName(properties[i])[0];
1444 if(tmpElm){
1445 if(tmpElm.childNodes[0]){
1446 this[i] = tmpElm.childNodes[0].nodeValue;
1447 js_log('set pl property: ' + i+' to '+this[i]);
1448 }
1449 }
1450 }
1451 var clips = this.data.getElementsByTagName("track");
1452 js_log('found clips:'+clips.length);
1453 //add any clip specific properties
1454 properties.src = 'location';
1455 for (var i=0;i<clips.length;i++){
1456 var cur_clip = new mvClip({id:'p_'+this.id+'_c_'+i,pp:this,order:i});
1457 //js_log('cur clip:'+ cur_clip.id);
1458 for(var j in properties){
1459 tmpElm = clips[i].getElementsByTagName( properties[j] )[0];
1460 if(tmpElm!=null){
1461 if( tmpElm.childNodes.length!=0){
1462 cur_clip[j] = tmpElm.childNodes[0].nodeValue;
1463 js_log('set clip property: ' + j+' to '+cur_clip[j]);
1464 }
1465 }
1466 }
1467 //add mvClip ref from info link:
1468 if(cur_clip.linkback){
1469 //if mv linkback
1470 mvInx = 'Stream:';
1471 mvclippos = cur_clip.linkback.indexOf(mvInx);
1472 if(mvclippos!==false){
1473 cur_clip.mvclip=cur_clip.linkback.substr( mvclippos+mvInx.length );
1474 }
1475 }
1476 //set up the embed object now that all the values have been set
1477 cur_clip.setUpEmbedObj();
1478 //add the current clip to the clip list
1479 this.addCliptoTrack(cur_clip);
1480 }
1481 //js_log('done with parse');
1482 return true;
1483 }
1484 }
1485 /*****************************
1486 * SMIL CODE (could be put into another js file / lazy_loaded for improved basic playlist performance / modularity)
1487 *****************************/
1488 /*playlist driver extensions to the playlist object*/
1489 mvPlayList.prototype.monitor = function(){
1490 //js_log('pl:monitor');
1491 //if paused stop updates
1492 if( this.paused ){
1493 //clearInterval( this.smil_monitorTimerId );
1494 return ;
1495 }
1496 //js_log("pl check: " + this.currentTime + ' > '+this.getDuration());
1497 //check if we should be done:
1498 if( this.currentTime > this.getDuration() )
1499 this.stop();
1500
1501 //update the playlist current time:
1502 //check for a trsnOut from the previus clip to subtract
1503 this.currentTime = this.cur_clip.dur_offset + this.cur_clip.embed.relativeCurrentTime();
1504
1505 //update slider:
1506 if(!this.userSlide){
1507 this.setStatus(seconds2npt(this.currentTime) + '/' + seconds2npt(this.getDuration()) );
1508 this.setSliderValue( this.currentTime / this.getDuration() );
1509 }
1510 //pre-load any future clips:
1511 this.loadFutureClips();
1512
1513
1514 //status updates are handled by children clips ... playlist mostly manages smil actions
1515 this.doSmilActions();
1516
1517 if( ! this.smil_monitorTimerId ){
1518 if(document.getElementById(this.id)){
1519 this.smil_monitorTimerId = setInterval('$j(\'#'+this.id+'\').get(0).monitor()', 250);
1520 }
1521 }
1522 }
1523 //handles the rendering of overlays load of future clips (if necessary)
1524 //@@todo could be lazy loaded if necessary
1525 mvPlayList.prototype.doSmilActions = function( single_frame ){
1526 //js_log('f:doSmilActions: ' + this.cur_clip.id + ' tid: ' + this.cur_clip.transOut );
1527 var offSetTime = 0; //offset time should let us start a transition later on if we have to.
1528 var _clip = this.cur_clip; //setup a local pointer to cur_clip
1529
1530
1531 //do any smil time actions that may change the current clip
1532 if( this.userSlide ){
1533 //current clip set is set via updateThumbTime function
1534 }else{
1535 //assume playing and go to next:
1536 if( _clip.dur <= _clip.embed.currentTime
1537 && _clip.order != _clip.pp.getClipCount()-1 ){
1538 //force next clip
1539 js_log('order:' + _clip.order + ' != count:' + ( _clip.pp.getClipCount()-1 ) +
1540 ' smil dur: ' + _clip.dur + ' <= curTime: ' + _clip.embed.currentTime + ' go to next clip..');
1541 //do a _play next:
1542 _clip.pp.playNext();
1543 }
1544 }
1545 //@@todo could maybe generalize transIn with trasOut into one "flow" with a few scattered if statements
1546 //update/setup all transitions (will render current transition state)
1547 var in_range=false;
1548 //pretty similar actions per transition types so group into a loop:
1549 var tran_types = {'transIn':true,'transOut':true};
1550 for(var tid in tran_types ){
1551 eval('var tObj = _clip.'+tid);
1552 if(!tObj)
1553 continue;
1554 //js_log('f:doSmilActions: ' + _clip.id + ' tid:'+tObj.id + ' tclip_id:'+ tObj.pClip.id);
1555 //make sue we are in range:
1556 if( tid=='transIn' )
1557 in_range = (_clip.embed.currentTime <= tObj.dur)?true:false;
1558
1559 if( tid=='transOut' )
1560 in_range = (_clip.embed.currentTime >= (_clip.dur - tObj.dur))?true:false;
1561
1562 if( in_range ){
1563 if( this.userSlide || single_frame ){
1564 if( tid=='transIn' )
1565 mvTransLib.doUpdate(tObj, (_clip.embed.currentTime / tObj.dur) );
1566
1567 if( tid=='transOut' )
1568 mvTransLib.doUpdate(tObj, (_clip.embed.currentTime-(_clip.dur - tObj.dur)) /tObj.dur);
1569
1570 }else{
1571 if( tObj.animation_state==0 ){
1572 js_log('init/run_transition ');
1573 tObj.run_transition();
1574 }
1575 }
1576 }else{
1577 //close up transition if done & still onDispaly
1578 if( tObj.overlay_selector_id ){
1579 js_log('close up transition :'+tObj.overlay_selector_id);
1580 mvTransLib.doCloseTransition( tObj );
1581 }
1582 }
1583 }
1584 }
1585
1586 /*
1587 * mvTransLib library of transitions
1588 * a single object called to initiate transition effects can easily be extended in separate js file
1589 * /mvTransLib is a all static object no instances of mvTransLib/
1590 * (that way a limited feature set "sequence" need not include a _lot_ of js unless necessary )
1591 *
1592 * Smil Transition Effects see:
1593 * http://www.w3.org/TR/SMIL3/smil-transitions.html#TransitionEffects-TransitionAttribute
1594 */
1595 var mvTransLib = {
1596 /*
1597 * function doTransition lookups up the transition in the mvTransLib obj
1598 * and init the transition if its available
1599 * @param tObj transition attribute object
1600 * @param offSetTime default value 0 if we need to start rendering from a given time
1601 */
1602 doInitTransition:function(tObj){
1603 js_log('mvTransLib:f:doInitTransition');
1604 if(!tObj.type){
1605 js_log('transition is missing type attribute');
1606 return false;
1607 }
1608
1609 if(!tObj.subtype){
1610 js_log('transition is missing subtype attribute');
1611 return false;
1612 }
1613
1614 if(!this['type'][tObj.type]){
1615 js_log('mvTransLib does not support type: '+tObj.type);
1616 return false;
1617 }
1618
1619 if(!this['type'][tObj.type][tObj.subtype]){
1620 js_log('mvTransLib does not support subType: '+tObj.subtype);
1621 return false;
1622 }
1623
1624 //setup overlay_selector_id
1625 if(tObj.subtype=='crossfade'){
1626 if(tObj.transAttrType=='transIn')
1627 var other_pClip = tObj.pClip.pp.getPrevClip();
1628 if(tObj.transAttrType=='transOut')
1629 var other_pClip = tObj.pClip.pp.getNextClip();
1630
1631 if(typeof(other_pClip)=='undefined' || other_pClip === false || other_pClip.id == tObj.pClip.pp.cur_clip.id)
1632 js_log('Error: crossfade without target media asset');
1633 //if not sliding start playback:
1634 if(!tObj.pClip.pp.userSlide){
1635 other_pClip.embed.play();
1636 //manualy ad the extra layer to the activeClipList
1637 tObj.pClip.pp.activeClipList.add( other_pClip );
1638 }
1639 tObj.overlay_selector_id = 'clipDesc_'+other_pClip.id;
1640 }else{
1641 tObj.overlay_selector_id =this.getOverlaySelector(tObj);
1642 }
1643
1644 //all good call function with tObj param
1645 js_log('should call: '+tObj.type + ' ' + tObj.subtype );
1646 this['type'][tObj.type][tObj.subtype].init(tObj);
1647 },
1648 doCloseTransition:function(tObj){
1649 if(tObj.subtype=='crossfade'){
1650 //close up crossfade
1651 js_log("close up crossfade");
1652 }else{
1653 $j('#'+tObj.overlay_selector_id).remove();
1654 }
1655 //null selector:
1656 tObj.overlay_selector_id=null;
1657 },
1658 getOverlaySelector:function(tObj){
1659 var overlay_selector_id= tObj.transAttrType + tObj.pClip.id;
1660 js_log('f:getOverlaySelector: '+overlay_selector_id + ' append to: ' +'#videoPlayer_'+tObj.pClip.embed.id );
1661 //make sure overlay_selector_id not already here:
1662 if( $j('#'+overlay_selector_id).length == 0 ){
1663 $j('#videoPlayer_'+tObj.pClip.embed.id).prepend(''+
1664 '<div id="'+overlay_selector_id+'" ' +
1665 'style="position:absolute;top:0px;left:0px;' +
1666 'height:'+parseInt(tObj.pClip.pp.height)+'px;'+
1667 'width:'+parseInt(tObj.pClip.pp.width)+'px;' +
1668 'z-index:2">' +
1669 '</div>');
1670 }
1671 return overlay_selector_id;
1672 },
1673 doUpdate:function(tObj, percent){
1674 //init the transition if nessesary:
1675 if(!tObj.overlay_selector_id)
1676 this.doInitTransition(tObj);
1677
1678 //@@todo we should ensure visability outside of doUpate loop
1679 if(!$j('#'+tObj.overlay_selector_id).is(':visible'))
1680 $j('#'+tObj.overlay_selector_id).show();
1681
1682 //do update:
1683 /*js_log('doing update for: '+ tObj.pClip.id +
1684 ' type:' + tObj.transAttrType +
1685 ' t_type:'+ tObj.type +
1686 ' subypte:'+ tObj.subtype +
1687 ' percent:' + percent);*/
1688
1689 this['type'][tObj.type][tObj.subtype].u(tObj,percent);
1690 },
1691 getTransitionIcon:function( type, subtype){
1692 return mv_embed_path +'/skins/'+mwConfig['skin_name']+'/transition_images/'+ type+'_'+ subtype+ '.png';
1693 },
1694 /*
1695 * mvTransLib: functional library mapping:
1696 */
1697 type:{
1698 //types:
1699 fade:{
1700 fadeFromColor:{
1701 'attr':['fadeColor'],
1702 'init':function(tObj){
1703 //js_log('f:fadeFromColor: '+tObj.overlay_selector_id +' to color: '+ tObj.fadeColor);
1704 if(!tObj.fadeColor)
1705 js_log('missing fadeColor');
1706 if($j('#'+tObj.overlay_selector_id).length==0){
1707 js_log("ERROR can't find: "+ tObj.overlay_selector_id);
1708 }
1709 //set the initial state
1710 $j('#'+tObj.overlay_selector_id).css({
1711 'background-color':tObj.fadeColor,
1712 'opacity':"1"
1713 });
1714 },
1715 'u':function(tObj, percent){
1716 //js_log(':fadeFromColor:update: '+ percent);
1717 //fade from color (invert the percent)
1718 var percent = 1- percent;
1719 $j('#'+tObj.overlay_selector_id).css({
1720 "opacity" : percent
1721 });
1722 }
1723 },
1724 //corssFade
1725 crossfade:{
1726 "attr":[],
1727 "init":function(tObj){
1728 js_log('f:crossfade: '+tObj.overlay_selector_id);
1729 if($j('#'+tObj.overlay_selector_id).length==0)
1730 js_log("ERROR overlay selector not found: "+tObj.overlay_selector_id);
1731
1732 //set the initial state show the zero opacity animation
1733 $j('#'+tObj.overlay_selector_id).css({'opacity':0}).show();
1734 },
1735 'u':function(tObj, percent){
1736 $j('#'+tObj.overlay_selector_id).css({
1737 "opacity" : percent
1738 });
1739 }
1740 }
1741 }
1742 }
1743 }
1744
1745 /* object to manage embedding html with smil timings
1746 * grabs settings from parent clip
1747 */
1748 var transitionObj = function(element) {
1749 this.init(element);
1750 };
1751 transitionObj.prototype = {
1752 supported_attributes : new Array(
1753 'id',
1754 'type',
1755 'subtype',
1756 'fadeColor',
1757 'dur'
1758 ),
1759 transAttrType:null, //transIn or transOut
1760 overlay_selector_id:null,
1761 pClip:null,
1762 timerId:null,
1763 animation_state:0, //can be 0=unset, 1=running, 2=done
1764 interValCount:0, //inter-intervalCount for animating between time updates
1765 dur:2, //default duration of 2
1766 init:function(element){
1767 //load supported attributes:
1768 var _this = this;
1769 $j.each(this.supported_attributes, function(i, attr){
1770 if(element.getAttribute(attr))
1771 _this[attr]= element.getAttribute(attr);
1772 });
1773 //@@todo process duration (for now just strip s) per:
1774 //http://www.w3.org/TR/SMIL3/smil-timing.html#Timing-ClockValueSyntax
1775 if(_this.dur)
1776 _this.dur = smilParseTime(_this.dur);
1777 },
1778 /*
1779 * returns a visual representation of the transition
1780 */
1781 getIconSrc:function(opt){
1782 //@@todo support some arguments
1783 return mvTransLib.getTransitionIcon(this.type, this.subtype);
1784 },
1785 getDuration:function(){
1786 return this.dur;
1787 },
1788 //returns the values of supported_attributes:
1789 getAttributeObj:function(){
1790 var elmObj = {};
1791 for(var i in this.supported_attributes){
1792 var attr = this.supported_attributes[i];
1793 if(this[attr])
1794 elmObj[ attr ] = this[attr];
1795 }
1796 return elmObj;
1797 },
1798 /*
1799 * the main animation loop called every MV_ANIMATION_CB_RATE or 34ms ~around 30frames per second~
1800 */
1801 run_transition:function(){
1802 //js_log('f:run_transition:' + this.interValCount);
1803
1804 //update the time from the video if native:
1805 if(typeof this.pClip.embed.vid !='undefined'){
1806 this.interValCount=0;
1807 this.pClip.embed.currentTime = this.pClip.embed.vid.currentTime;
1808 }
1809
1810 //}else{
1811 //relay on currentTime update grabs (every 250ms or so) (ie for images)
1812 // if(this.prev_curtime!=this.pClip.embed.currentTime){
1813 // this.prev_curtime = this.pClip.embed.currentTime;
1814 // this.interValCount=0;
1815 // }
1816 //}
1817 //start_time =asigned by doSmilActions
1818 //base_cur_time = pClip.embed.currentTime;
1819 //dur = asigned by attribute
1820 if(this.animation_state==0){
1821 mvTransLib.doInitTransition(this);
1822 this.animation_state=1;
1823 }
1824 //set percentage include difrence of currentTime to prev_curTime
1825 // ie updated in-between currentTime updates)
1826
1827 if(this.transAttrType=='transIn')
1828 var percentage = ( this.pClip.embed.currentTime +
1829 ( (this.interValCount*MV_ANIMATION_CB_RATE)/1000 )
1830 ) / this.dur ;
1831
1832 if(this.transAttrType=='transOut')
1833 var percentage = (this.pClip.embed.currentTime +
1834 ( (this.interValCount*MV_ANIMATION_CB_RATE)/1000 )
1835 - (this.pClip.dur - this.dur)
1836 ) /this.dur ;
1837
1838 /*js_log('percentage = ct:'+this.pClip.embed.currentTime + ' + ic:'+this.interValCount +' * cb:'+MV_ANIMATION_CB_RATE +
1839 ' / ' + this.dur + ' = ' + percentage );
1840 */
1841
1842 //js_log('cur percentage of transition: '+percentage);
1843 //update state based on current time + cur_time_offset (for now just use pClip.embed.currentTime)
1844 mvTransLib.doUpdate(this, percentage);
1845
1846 if( percentage >= 1 ){
1847 js_log("transition done update with percentage "+percentage);
1848 this.animation_state=2;
1849 clearInterval(this.timerId);
1850 mvTransLib.doCloseTransition(this)
1851 return true;
1852 }
1853
1854 this.interValCount++;
1855 //setInterval in we are still in running state and user is not using the playhead
1856 if( this.animation_state==1 ){
1857 if(!this.timerId){
1858 this.timerId = setInterval('document.getElementById(\'' + this.pClip.pp.id + '\').'+
1859 'run_transition(\'' + this.pClip.pp.cur_clip.order + '\','+
1860 '\''+ this.transAttrType + '\')',
1861 MV_ANIMATION_CB_RATE);
1862 }
1863 }else{
1864 clearInterval(this.timerId);
1865 }
1866 return true;
1867 },
1868 clone:function(){
1869 var cObj = new this.constructor();
1870 for(var i in this)
1871 cObj[i]=this[i];
1872 return cObj;
1873 }
1874 }
1875
1876 //very limited smile feature set more details soon:
1877 //region="video_region" transIn="fromGreen" begin="2s"
1878 //http://www.w3.org/TR/2007/WD-SMIL3-20070713/smil-extended-media-object.html#edef-ref
1879 var smilPlaylist ={
1880 transitions:{},
1881 doParse:function(){
1882 var _this = this;
1883 js_log('f:doParse smilPlaylist');
1884 //@@todo get/parse meta that we are intersted in:
1885 var meta_tags = this.data.getElementsByTagName('meta');
1886 var metaNames = {
1887 'title':'',
1888 'interface_url':"",
1889 'linkback':"",
1890 'mTitle':"",
1891 'mTalk':"",
1892 'mTouchedTime':""
1893 };
1894 $j.each(meta_tags, function(i,meta_elm){
1895 //js_log( "on META tag: "+ $j(meta_elm).attr('name') );
1896 if( $j(meta_elm).attr('name') in metaNames){
1897 _this[ $j(meta_elm).attr('name') ] = $j(meta_elm).attr('content');
1898 }
1899 //special check for wikiDesc
1900 if( $j(meta_elm).attr('name') == 'wikiDesc'){
1901 if(meta_elm.firstChild)
1902 _this.wikiDesc = meta_elm.firstChild.nodeValue;
1903 }
1904 });
1905 //add transition objects:
1906 var transition_tags = this.data.getElementsByTagName('transition');
1907 $j.each(transition_tags, function( i, trans_elm ){
1908 if( $j(trans_elm).attr("id") ){
1909 _this.transitions[ $j(trans_elm).attr("id")]= new transitionObj( trans_elm );
1910 }else{
1911 js_log('skipping transition: (missing id) ' + trans_elm );
1912 }
1913 });
1914 js_log('loaded transitions:' + _this.transitions.length);
1915 //add seq (latter we will have support more than one seq tag) / more than one "track"
1916 var seq_tags = this.data.getElementsByTagName('seq');
1917 $j.each(seq_tags, function(i,seq_elm){
1918 var inx = 0;
1919 //get all the clips for the given seq:
1920 $j.each(seq_elm.childNodes, function(i, mediaElement){
1921 //~complex~ @@todo to handlde a lot like "switch" "region" etc
1922 //js_log('process: ' + mediaElemnt.tagName);
1923 if(typeof mediaElement.tagName!='undefined'){
1924 if( _this.tryAddMedia( mediaElement, inx ) ){
1925 inx++;
1926 }
1927 }
1928 });
1929 });
1930 js_log("done proc seq tags");
1931 return true;
1932 },
1933 tryAddMediaObj:function(mConfig, order, track_id){
1934 js_log('tryAddMediaObj::');
1935 var mediaElement = document.createElement('div');
1936 for(var i =0; i < mv_smil_ref_supported_attributes.length;i++){
1937 var attr = mv_smil_ref_supported_attributes[i];
1938 if(mConfig[attr])
1939 $j(mediaElement).attr( attr, mConfig[attr] );
1940 }
1941 this.tryAddMedia(mediaElement, order, track_id);
1942 },
1943 tryAddMedia:function(mediaElement, order, track_id){
1944 js_log('SMIL:tryAddMedia:' + mediaElement);
1945 var _this = this;
1946 //set up basic mvSMILClip send it the mediaElemnt & mvClip init:
1947 var clipObj = {};
1948 var cConfig = {
1949 "id":'p_' + _this.id + '_c_' + order,
1950 "pp":this, //set the parent playlist object pointer
1951 "order": order
1952 };
1953 var clipObj = new mvSMILClip(mediaElement, cConfig );
1954
1955 //set optional params track
1956 if( typeof track_id != 'undefined')
1957 clipObj["track_id"] = track_id;
1958
1959
1960 if ( clipObj ){
1961 //set up embed:
1962 clipObj.setUpEmbedObj();
1963 //inhreit embedObject (only called on "new media"
1964 clipObj.embed.init_with_sources_loaded();
1965 //add clip to track:
1966 this.addCliptoTrack( clipObj , order);
1967
1968 return true;
1969 }
1970 //@@todo we could throw error details here once we integrate try catches everywhere :P
1971 return false;
1972 }
1973 }
1974 //http://www.w3.org/TR/2007/WD-SMIL3-20070713/smil-extended-media-object.html#smilMediaNS-BasicMedia
1975 //and added resource description elements
1976 //@@ supporting the "ID" attribute turns out to be kind of tricky since we use it internally
1977 // (for now don't include)
1978 var mv_smil_ref_supported_attributes = new Array(
1979 'src',
1980 'type',
1981 'region',
1982 'transIn',
1983 'transOut',
1984 'fill',
1985 'dur',
1986 'title',
1987 //some custom attributes:
1988 'uri',
1989 'durationHint',
1990 'poster'
1991 );
1992 /* extension to mvClip to support smil properties */
1993 var mvSMILClip=function(sClipElm, mvClipInit){
1994 return this.init(sClipElm, mvClipInit);
1995 }
1996 //all the overwritten and new methods for SMIL extension of mv_embed
1997 mvSMILClip.prototype = {
1998 instanceOf:'mvSMILClip',
1999 params : {}, //support param as child of ref clips per SMIL spec
2000 init:function(sClipElm, mvClipInit){
2001 _this = this;
2002 this.params = {};
2003 //make new mvCLip with ClipInit vals
2004 var myMvClip = new mvClip( mvClipInit );
2005 //inherit mvClip
2006 for(var method in myMvClip){
2007 if(typeof this[method] != 'undefined' ){
2008 this['parent_'+method]=myMvClip[method];
2009 }else{
2010 this[method] = myMvClip[method];
2011 }
2012 }
2013
2014 //get supported media attr init non-set
2015 for(var i =0; i < mv_smil_ref_supported_attributes.length;i++){
2016 var attr = mv_smil_ref_supported_attributes[i];
2017 if( $j(sClipElm).attr(attr)){
2018 _this[attr] = $j(sClipElm).attr(attr);
2019 }
2020 }
2021 this['tagName'] = sClipElm.tagName;
2022
2023 if( sClipElm.firstChild ){
2024 this['wholeText'] = sClipElm.firstChild.nodeValue;
2025 js_log("SET wholeText for: " + this['tagName'] + ' '+ this['wholeText']);
2026 }
2027 //debugger;
2028 //mv_embed specific property:
2029 if( $j(sClipElm).attr('poster') )
2030 this['img'] = $j(sClipElm).attr('poster');
2031
2032 //lookup and assign copies of transitions
2033 // (since transition needs to hold some per-instance state info)
2034 if(this.transIn && this.pp.transitions[ this.transIn ]){
2035 this.transIn = this.pp.transitions[ this.transIn ].clone();
2036 this.transIn.pClip = _this;
2037 this.transIn.transAttrType='transIn';
2038 }
2039
2040 if(this.transOut && this.pp.transitions[ this.transOut ]){
2041 this.transOut = this.pp.transitions[ this.transOut ].clone();
2042 this.transOut.pClip = _this;
2043 this.transOut.transAttrType = 'transOut';
2044 }
2045 //parse duration / begin times:
2046 if( this.dur )
2047 this.dur = smilParseTime( this.dur );
2048 //parse the media duration hint ( the source media length)
2049 if( this.durationHint )
2050 this.durationHint = smilParseTime( this.durationHint );
2051
2052 //conform type to vido/ogg:
2053 if( this.type == 'application/ogg' )
2054 this.type = 'video/ogg'; //conform to 'video/ogg' type
2055
2056 //if unset type and we have innerHTML assume text/html type
2057 if( !this.type && this.wholeText ){
2058 this.type = 'text/html';
2059 }
2060 //also grab andy child param elements if present:
2061 if( sClipElm.getElementsByTagName('param')[0] ){
2062 for(var i=0; i< sClipElm.getElementsByTagName('param').length; i++){
2063 this.params[ sClipElm.getElementsByTagName('param')[i].getAttribute("name") ] =
2064 sClipElm.getElementsByTagName('param')[i].firstChild.nodeValue;
2065 }
2066 }
2067 return this;
2068 },
2069 //returns the values of supported_attributes:
2070 getAttributeObj:function(){
2071 var elmObj = {};
2072 for(var i=0; i < mv_smil_ref_supported_attributes.length; i++){
2073 var attr = mv_smil_ref_supported_attributes[i];
2074 if(this[attr])
2075 elmObj[ attr ] = this[attr];
2076 }
2077 return elmObj;
2078 },
2079 /*
2080 * getDuration
2081 * @returns duration in int
2082 */
2083 getDuration:function(){
2084 //check for smil dur:
2085 if( this.dur )
2086 return this.dur;
2087 return this.embed.getDuration();
2088 },
2089 //gets the duration of the clip subracting transitions
2090 getSoloDuration:function(){
2091 var fulldur = this.getDuration();
2092 //see if we need to subtract from time eating transitions (transOut)
2093 if(this.transOut)
2094 fulldur -= this.transOut.getDuration();
2095
2096 //js_log("getSoloDuration:: td: " + this.getDuration() + ' sd:' + fulldur);
2097 return fulldur;
2098 },
2099 //gets the duration of the original media asset (usefull for bounding setting of in-out-points)
2100 getSourceDuration:function(){
2101 if( this.durationHint )
2102 return this.durationHint;
2103 //if we have no source duration just return the media dur:
2104 return this.getDuration();
2105 }
2106 }
2107 /*
2108 * takes an input
2109 * @time_str input time string
2110 * returns time in seconds
2111 *
2112 * @@todo process duration (for now just srip s) per:
2113 * http://www.w3.org/TR/SMIL3/smil-timing.html#Timing-ClockValueSyntax
2114 * (probably have to use a Time object to fully support the smil spec
2115 */
2116 function smilParseTime( time_str ){
2117 time_str = time_str + '';
2118 //first check for hh:mm:ss time:
2119 if(time_str.split(':').length == 3){
2120 return npt2seconds(time_str);
2121 }else{
2122 //assume 34s secconds representation
2123 return parseInt(time_str.replace('s', ''));
2124 }
2125 }
2126 //stores a list pointers to active clips (maybe this should just be a property of clips (but results in lots of seeks)
2127 var activeClipList = function(){
2128 return this.init();
2129 }
2130 activeClipList.prototype = {
2131 init:function(){
2132 this.clipList = new Array();
2133 },
2134 add:function( clip ){
2135 //make sure the clip is not already active:
2136 for(var i =0;i < this.clipList.lenght; i++){
2137 var active_clip = this.clipList[i];
2138 if(clip.id == active_clip.id) //clip already active:
2139 return false;
2140 }
2141 this.clipList.push( clip );
2142 return true;
2143 },
2144 remove:function( clip ){
2145 for(var i = 0; i < this.clipList.length; i++){
2146 var active_clip = this.clipList[i];
2147 if(clip.id == active_clip.id){
2148 this.clipList.splice(i, 1);
2149 return true;
2150 }
2151 }
2152 return false;
2153 },
2154 getClipList:function(){
2155 return this.clipList;
2156 }
2157 }
2158 var trackObj = function( iObj ){
2159 return this.init( iObj );
2160 }
2161 var supported_track_attr =
2162 trackObj.prototype = {
2163 //should be something like "seq" per SMIL spec
2164 //http://www.w3.org/TR/SMIL3/smil-timing.html#edef-seq
2165 // but we don't really support anywhere near the full concept of seq containers yet either
2166 supported_attributes: new Array(
2167 'title',
2168 'desc',
2169 'inx'
2170 ),
2171 disp_mode:'timeline_thumb',
2172 init : function(iObj){
2173 if(!iObj)
2174 iObj={};
2175 //make sure clips is new:
2176 this.clips = new Array();
2177
2178 var _this = this;
2179 $j.each(this.supported_attributes, function(i, attr){
2180 if(iObj[attr])
2181 _this[attr] = iObj[attr];
2182 });
2183 },
2184 //returns the values of supported_attributes:
2185 getAttributeObj:function(){
2186 var elmObj = {};
2187 for(var i in this.supported_attributes){
2188 var attr = this.supported_attributes[i];
2189 if(this[attr])
2190 elmObj[ attr ] = this[attr];
2191 }
2192 return elmObj;
2193 },
2194 addClip:function(clipObj, pos){
2195 js_log('pl_Track: AddClip at:' + pos + ' clen: ' + this.clips.length);
2196 if( typeof pos == 'undefined' )
2197 pos = this.clips.length;
2198 //get everything after pos
2199 this.clips.splice(pos, 0, clipObj);
2200 //keep the clip order values accurate:
2201 this.reOrderClips();
2202 js_log("did add now cLen: " + this.clips.length);
2203 },
2204 getClip:function( inx ){
2205 if( !this.clips[inx] )
2206 return false;
2207 return this.clips[inx];
2208 },
2209 reOrderClips:function(){
2210 for(var k in this.clips){
2211 this.clips[k].order=k;
2212 }
2213 },
2214 getClipCount:function(){
2215 return this.clips.length;
2216 },
2217 inheritEmbedObj: function(){
2218 $j.each(this.clips, function(i, clip){
2219 clip.embed.inheritEmbedObj();
2220 });
2221 }
2222 };
2223
2224 /* utility functions
2225 * (could be combined with other stuff)
2226 */
2227 function getAbsolutePos(objectId) {
2228 // Get an object left position from the upper left viewport corner
2229 o = document.getElementById(objectId);
2230 oLeft = o.offsetLeft; // Get left position from the parent object
2231 while(o.offsetParent!=null) { // Parse the parent hierarchy up to the document element
2232 oParent = o.offsetParent // Get parent object reference
2233 oLeft += oParent.offsetLeft // Add parent left position
2234 o = oParent
2235 }
2236 o = document.getElementById(objectId);
2237 oTop = o.offsetTop;
2238 while(o.offsetParent!=null) { // Parse the parent hierarchy up to the document element
2239 oParent = o.offsetParent // Get parent object reference
2240 oTop += oParent.offsetTop // Add parent top position
2241 o = oParent
2242 }
2243 return {x:oLeft,y:oTop};
2244 }
2245 String.prototype.htmlEntities = function(){
2246 var chars = new Array ('&','à','á','â','ã','ä','å','æ','ç','è','é',
2247 'ê','ë','ì','í','î','ï','ð','ñ','ò','ó','ô',
2248 'õ','ö','ø','ù','ú','û','ü','ý','þ','ÿ','À',
2249 'Á','Â','Ã','Ä','Å','Æ','Ç','È','É','Ê','Ë',
2250 'Ì','Í','Î','Ï','Ð','Ñ','Ò','Ó','Ô','Õ','Ö',
2251 'Ø','Ù','Ú','Û','Ü','Ý','Þ','€','\"','ß','<',
2252 '>','¢','£','¤','¥','¦','§','¨','©','ª','«',
2253 '¬','­','®','¯','°','±','²','³','´','µ','¶',
2254 '·','¸','¹','º','»','¼','½','¾');
2255
2256 var entities = new Array ('amp','agrave','aacute','acirc','atilde','auml','aring',
2257 'aelig','ccedil','egrave','eacute','ecirc','euml','igrave',
2258 'iacute','icirc','iuml','eth','ntilde','ograve','oacute',
2259 'ocirc','otilde','ouml','oslash','ugrave','uacute','ucirc',
2260 'uuml','yacute','thorn','yuml','Agrave','Aacute','Acirc',
2261 'Atilde','Auml','Aring','AElig','Ccedil','Egrave','Eacute',
2262 'Ecirc','Euml','Igrave','Iacute','Icirc','Iuml','ETH','Ntilde',
2263 'Ograve','Oacute','Ocirc','Otilde','Ouml','Oslash','Ugrave',
2264 'Uacute','Ucirc','Uuml','Yacute','THORN','euro','quot','szlig',
2265 'lt','gt','cent','pound','curren','yen','brvbar','sect','uml',
2266 'copy','ordf','laquo','not','shy','reg','macr','deg','plusmn',
2267 'sup2','sup3','acute','micro','para','middot','cedil','sup1',
2268 'ordm','raquo','frac14','frac12','frac34');
2269
2270 newString = this;
2271 for (var i = 0; i < chars.length; i++)
2272 {
2273 myRegExp = new RegExp();
2274 myRegExp.compile(chars[i],'g')
2275 newString = newString.replace (myRegExp, '&' + entities[i] + ';');
2276 }
2277 return newString;
2278 };
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